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  Figure 10.2 
Sample Ask and Bid Price Window | 
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  The spread is the difference between those two prices, in this case 1/8 of a point. If you buy this stock and the price never moves before you sell it, your loss will equal the spread. | 
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  Figure 10.3 displays how the spread affects your P&L. | 
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  Figure 10.3 
How the Spread Affects P&L | 
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